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97．be lost in埋頭于，迷失在……中

We were lost in the forest

96．1ight up照亮，點(diǎn)燃

The searchlight lit up the whole area．

throw light upon闡明，使……清楚

Perhaps you can throw some light on these

95．1et alone更不用說(shuō)

I couldn’t afford to rent a house like that，let alone buy it

let down使失望

I won’t let him down in any way

94．1eave alone別動(dòng)，別管，讓……單獨(dú)呆著

Thank you，but leave me alone，please．

1eave out遺漏；忽視，不理會(huì)

Don’t leave me out，please．

93．1ay down放下

The general told the troops to lay down their arms．

92．know about了解

I happened to know about him．

know of聽(tīng)說(shuō)，知道有

He said that he knew of a hotel that might suit him

91．hunt for尋找

What do you hurt for?

90．hang up掛上電話；掛起來(lái)

After she finished her conversation，she hung up．

Lester hung up his hat and coat．

89．set foot in／on踏上，走進(jìn)

Never set foot on our property again．

88．focus on聚集于，集中于

Focus your attention on your work．